It’s risky, but My Morning Jacket’s new album “Circuital” treads a fine line between indie cult classic and radio-friendly alt-rock sensation. The album’s title track is an epic seven-minute sermon. Jim James, the band’s warbling front man, slides into the song with an internal monologue: “I am older, day by day / still going back to my childhood way.” James reflects upon the absurdity of the world amid Allman Brothers-like rhythm guitars. My Morning Jacket’s sense of humor shines in a track that pays homage to troublemakers, “Outta My System,” a playful examination of adolescence. The playfulness continues with “Holdin’ on to Black Metal,” a light metal song accentuated by a children’s choir. Other notable tracks include the acoustic love letter “Wonderful” and the album’s funky opening track, “Victory Dance.” “Circuital” is an adventurous album (as should be expected from the Louisville four-piece) that seamlessly blurs the lines between funk, rock and metal. Yet it maintains the essence of My Morning Jacket, a childlike sense of wonderment. My Morning Jacket is a band that excels in their live performances. And though their energy doesn’t completely translate to studio albums, “Circuital” is still worth the buy.